Electric time-switch.



PATENTED JAN. 7. 1908. F. W. BROOK. ELECTRIC TIME SWITCH.

APPLICATION FILED MAR.11. 1907.

2 SHEETS-SHEET 1.

WITNESSES:

- INVENTOR. FPO/7k WByoc/f WOC " ATTORNEY No. 876,293. PATENTED JAN. 7,1908.

F. W. BROOK. ELECTRIC TIME SWITCH.

APPLIUATION FILED MAR. 11. 1907.

2 SHEETSSHEET 2.

WITNESSES: I N VEN TOR.

Fran/1' W Brook 2% (9 I ATTORNEY.

v FRANK -W. BROOK, .OF OHATHAM, ILLINOIS.

ELECTRIC TIME-SWITCH.

Specification of Letters Pat ent.

TPatented Jan. 7, 1908 Application filed March 11. 1907. Serial No.361.764:-

' whom it may concern."

known that I, 'FnA'isK W. BROOK, of the United States, residing at acam, in the county of Sanganion and oflllinois, have invented certainnew and useful Improvements in Electric Time- Switches, ofwhich thefollowing is a full, clear, and description, reference being had to theaccompanying drawings, forming a part hereof. v My invention hasrelation. toimprovennents in electric timeswitches; and it con- S in.the novel construction of switch more lolly forth in the specificationand j pointed out in the claims. the drawings, Figure 1 is a front eleu.of my invention showing the elecnits open; Fig. 2 is a similar view thecircuits closed; Fig. 3 is a vertical transverse section on'the line 3-3of l l and Fig. is an enlarged elevational detail of the latch and pawlfor breaking or closii'ig the circuit, showing the rear of the lock andalarm key thereof for tripping the ohject of my invention is to provide'nooperated sun'tch for turning store on and off at stated intervals,special ,tion being hadfor simplicity of operaanu urability of theparts. In detail tion may be described as follows: to the drawings, C,represent cl placed in contiguousrelation to a ending number of latcheswhich rew operating weightsby which. the e operated. Adjacent to the apost 3: to which is pivoted near r, a vertically oscillating latch 2 end"caches to the head 3 of the to alarm mechanism of the opposite endterminating in a en ages and locks in elevated tion gravity pawl or armpasses through a loop or lb weight W is suspended. is connected thelower end of deli passes over a pulley 8, the two ends a, a which arepivoted switch-levers 9, 9, i adapted to make electric conthe contactarms 10, 10, of two ent cir uits to which lead the wires e wire it, w ofeach circuit a'similar contact arm ",l

@i I flalli l0, with which cooperates a similar switch lever 9, 9, eachcircuit comprising a Wire w, arm 10, switch lever 9, a supporting arm 11for the switch lever, a connectingiwire section a a second supportingarm 11, a switch lever 9, a contact arm 10 and wire w. In connectionwith the clock C is a similar arrangement of latch 2, post 1, hook 4,

pawl 5, and cord 7 with weight W, cord connected with the 9, to closedposition, thus closing the circuits and automatically turning on thelights; The lights remain burning until such time as it may be necessaryto extinguish them. To eflect this automatically the merchant sets theclock C to a definite hour, at which time the alarm goes oil, the headof the alarm key tripping the latch 5, whereupon the release of theweight W draws on the cord ends a a (dotted position 'Fig. 2), therebyoscillating the switch-levers 9 9 to open position and breaking thecircuits.

Of course the cords 7, 7 may have any number of cord ends a, a, tocontrolany number of circuits, one clock being always set to turn'on thelights by closing the circults, and the other by breaking the circuits.

to extinguish the lights Having described my invention, what I claim is:

In combination with an electric circuit of said which the alarm has beenset and release the Weight whereby the latter puhing on the cordoscillates the switch lever to closed position, and a second clockcooperating "with a simiiar latch, pew], weight and cord secured to thesecond switch-lever,

.vherehy at a predetermined hour the release of the second Wel ht 1sefiected, and. the pnlhng on the cord t ereof osclllates the secondswitchiever to open osition end the circuit is broken, substantially asset forth. In testimony whereof I affix my signature, in presence of twowitnesses.

FRANK W. BROCK Witnesses:

WILLIAM JQRDQN FRANK Snow,

